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Effects of Long-Term Grazing on Feed Intake and Digestibility of Cattle in Meadow Steppe

Lulu HouNational Hulunbuir Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaXiaoping XinNational Hulunbuir Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaBeibei ShenNational Hulunbuir Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaQi QinNational Hulunbuir Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaAhmed Ibrahim Ahmed AltomeAgricultural Research Corporation, Wad Madani 126, SudanYousif Mohamed Zainelabdeen HamedAgricultural Research Corporation, Wad Madani 126, SudanRuirui YanNational Hulunbuir Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaSerekpaev NurlanS. Seifullin Kazakh Agro Technical University, Astana 010000, KazakhstanNogayev AdilbekLLP “Scientific and Production Center of Grain Farming Named after A.I. Barayev”, Akmola 021600, KazakhstanBalzhan AkhylbekovaLLP “Scientific and Production Center of Grain Farming Named after A.I. Barayev”, Akmola 021600, KazakhstanMaira KussainovaSustainable Agriculture Center, Kazakh National Agrarian Research University, Almaty 050010, KazakhstanAmartuvshin AmarjargalUniversity of the Humanities, Ulaanbaatar P.O. Box 210646/53, MongoliaWei FangDepartment of Biology, Pace University, New York, NY 10038, USAAlim PulatovEcoGIS Center, «Tashkent Institute of Irrigation and Agricultural Mechanization Engineers» National Research University (TIIAME NRU), Tashkent 100000, UzbekistanWenneng ZhouSchool of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, ChinaHaixia SunNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 150081, China

Agronomyjournal2023en

ABI

Annotatsiya

(1) Estimation of grazing livestock intake is the basis for studying animal–plant relationships and the nutritional status of grazing livestock and has important implications for grassland composition and productivity. (2) We used the saturated alkanes method to determine the feed intake and vegetation nutrient digestibility of livestock at different grazing intensities and in different months. (3) We found that C31 had the highest concentration in both pasture and fecal output, and the average recovery of C31 was 77.99%. The different grazing intensities significantly affected livestock intake. As the grazing intensity increased, there was a decreasing trend of livestock intake and the highest livestock feed intake was 6.11 kg DM/day in light grazing. With the increase in grazing season months, the highest livestock intake was 6.67 kg DM/day in the cold period in September. The month also had a significant effect on the digestibility of livestock for all nutrient variables when compared to the grazing intensity. Livestock weight and medium palatability species are more important for livestock intake. (4) Our study provides a more accurate measurement of grazing livestock intake, which can be used as a reference for the scientific management of grazing livestock and the rational use of grazing pastures.

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Mavzular

Rangeland Management and Livestock Ecology Ruminant Nutrition and Digestive Physiology Agriculture and Biological Studies

Identifikatorlar

DOI: 10.3390/agronomy13071760

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